Ikurou Hashizawa was a normal boy until he is captured by evil scientists who create the ultimate fighter by attaching a parasite, named Baoh, to his brain. The mysterious girl Sumire, who has psychic powers, frees him and together they work to avoiding being captured by those who want to use their powers.

Ikurou Hashizawa was a normal boy until he is captured by evil scientists who create the ultimate fighter by attaching a parasite, named Baoh, to his brain. The mysterious girl Sumire, who has psychic powers, frees him and together they work to avoiding being captured by those who want to use their powers.